The ability to taste PTC is due to a single dominant allele "T". You sampled 215 evolution students, and determined that 150 could detect the bitter taste of PTC and 65 could not. Assuming this trait ...

Cattle breeders have improved the quality of meat over the years by which process?
A) artificial selection
B) directional selection
C) stabilizing selection
D) A and B
E) A and C
I know the answer is ...

If a species has a vestigial anatomical
structure that it no longer uses, would
you expect this structure to disappear
over many generations through the action
of natural selection? Always, sometimes,
...

Assume you have an exam which has 5 extensive questions and 60 minutes.
You do not have time to cover most if you write everything in essay format.
If you start to write essays, you do not really have ...

I have an AP Bio class where I have to name 3 properties of water and I chose adhesion and cohesion for one of them. I'm having trouble finding out how exactly trees use adhesion and cohesion to move ...

Pair-end mapping (PEM) is a technique that allows to detect structural variants in DNA by obtaining paired-end reads and the comparison of their positions in a reference genome.
Then among libraries ...

Gene R is genetically linked to gene T with a recombination frequency of 0.3. Gene T and gene X assort independently from each other. Your colleague tells you that gene T and gene X reside on the same ...

Leena is a molecular biology student. She purifies two fragments of DNA, 800 and 300 base pairs long. These were obtained from a plasmid after digesting it with HindIII. Each of these fragments has a ...

In the biogas process you often measure Volatile solid and Total solids. Can any one explain these concepts more accurately and why it is interesting to look at these properties.
The biogas process ...